Dynamic partition dual boot mobile phone device

Patent metadata

Field	Value
Publication number	US-9766944-B2
Application number	US-201514688401-A
Country	US
Kind code	B2
Filing date	Apr 16, 2015
Priority date	Mar 25, 2014
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

Embodiments are disclosed that relate to multi boot mobile phone devices. In one example, a mobile phone device comprises one or more non-volatile storage devices including an empty partition, a blob partition storing two or more operating systems in a compressed format, a boot selection module configured to recognize user selection of at least one of the two or more operating systems, and a boot allocation module configured to, responsive to user selection of at least one of the two or more operating systems, split the empty partition into a different operating system partition for each selected operating system, decompress each selected operating system, and store each decompressed operating system on its respective operating system partition.

First claim

The invention claimed is:

1. A mobile phone device, comprising:
one or more non-volatile storage devices including:
an empty partition; and
a blob partition storing two or more operating systems in a compressed format;

a boot selection module configured to recognize user selection of at least one of the two or more operating systems; and
a boot allocation module configured to, responsive to user selection of at least one of the two or more operating systems, split the empty partition into a different operating system partition for each selected operating system, decompress each selected operating system, and store each decompressed operating system on its respective operating system partition.

2. The mobile phone device of claim 1 , wherein the boot allocation module is further configured to maintain in the blob partition an unselected operating system in the compressed format.

3. The mobile phone device of claim 2 , wherein the boot selection module is further configured to recognize a new user selection of a previously unselected operating system, and the boot allocation module is further configured to, responsive to the new user selection, reallocate a partition to the previously unselected operating system specified by the new user selection.

4. The mobile phone device of claim 3 , wherein the new user selection includes a deselection of a previously selected operating system, and the boot allocation module is further configured to compress the deselected operating system and store the compressed deselected operating system on the blob partition.

5. The mobile phone device of claim 2 , wherein the boot allocation module is further configured to delete a compressed version of the selected operating system from the blob partition.

6. The mobile phone device of claim 1 , wherein the boot allocation module is further configured to, after storing each decompressed operating system on its respective operating system partition, decrease a size of the blob partition.

7. The mobile phone device of claim 1 , wherein each operating system partition stores a respective selected operating system and user data for the respective selected operating system.

8. The mobile phone device of claim 1 , wherein the boot allocation module is further configured to create a calibration data partition from the empty partition, the calibration data partition storing respective calibration data for each selected operating system.

9. The mobile phone device of claim 8 , wherein the calibration data partition includes one or more sub-partitions.

10. The mobile phone device of claim 8 , wherein at least one of the one or more sub-partitions is an extensible firmware interface system sub-partition storing a boot manager for the selected operating system and a boot configuration database.

11. The mobile phone device of claim 10 , wherein the extensible firmware interface system sub-partition includes one or more unified extensible firmware interface applications.

12. The mobile phone device of claim 11 , wherein the one or more unified extensible firmware interface applications include a full flash update application.

13. The mobile phone device of claim 11 , wherein the one or more unified extensible firmware interface applications include a battery charging application.

14. The mobile phone device of claim 8 , wherein the calibration data partition includes a crash dump sub-partition configured to store data from crash dumps.

15. The mobile phone device of claim 8 , wherein the calibration data partition includes a silicon vendor sub-partition configured to store one or more vendor-specific applications defined by a silicon vendor.

16. The mobile phone device of claim 8 , wherein the calibration data partition includes a device provisioning sub-partition configured to store one or more of data particular to the mobile phone device, product validation keys, and configuration data for radio and GPS.

17. The mobile phone device of claim 1 , wherein the boot selection module is further configured to recognize user non-selection of at least one of the two or more operating systems, and wherein the boot allocation module is configured to, responsive to user non-selection of at least one of the two or more operating systems, delete the non-selected operating system.

18. The mobile phone device of claim 1 , wherein splitting the empty partition into a different operating system partition for each selected operating system includes formatting a file system of each different operating system partition.

19. A mobile phone device, comprising:
one or more non-volatile storage devices including:
an empty partition; and
a blob partition storing two or more operating systems in a compressed format;

a boot selection module configured to recognize user selection of at least one of the two or more operating systems; and
a boot allocation module configured to, responsive to user selection of at least one of the two or more operating systems, split the empty partition into a different operating system partition for each selected operating system, decompress each selected operating system, store each decompressed operating system on its respective operating system partition, and maintain on the blob partition each unselected operating system in the compressed format.

20. A mobile phone device, comprising:
one or more non-volatile storage devices including:
an empty partition; and
a blob partition storing two or more operating systems in a compressed format;

a boot selection module configured to recognize user selection of at least one of the two or more operating systems and non-selection of at least one of the two or more operating systems; and
a boot allocation module configured to, responsive to user selection of at least one of the two or more operating systems, split the empty partition into a different operating system partition for each selected operating system, decompress each selected operating system, store each decompressed operating system on its respective operating system partition, and delete each non-selected operating system.

Assignees

• Microsoft Technology Licensing Llc

Inventors

• Zhang Dejun
• Wang Bin
• Chin Ying N
• Zhao Pengxiang
• Zhu Robert Y

Classifications

• G06F9/441 Primary

  Multiboot arrangements, i.e. selecting an operating system to be loaded · CPC title

• G06F9/5077 Primary

  Logical partitioning of resources; Management or configuration of virtualized resources (specific details on emulation or internal functioning of virtual machines G06F9/455) · CPC title